Cisco AJ732A - MDS 9134 Fabric Switch Release Note page 22

New Features in Cisco MDS SAN-OS Release 3.1(3)
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m .
For complete configuration information about the CompactFlash CRC checksum test feature, refer to the
Cisco MDS 9000 Family CLI Configuration
CompactFlash checksum feature, refer to the
Universal Serial Bus Support
The two Universal Serial Bus (USB) 2.0 compatible ports on the Cisco MDS 9500 Series Supervisor-2
module are available for use with Cisco MDS SAN-OS Release 3.1(3). USB flash drives connected to
these ports may be used for the same functions as media in the external compact flash slot.
System Default Port Mode F
As of Cisco SAN-0S Release 3.1(3), a new CLI command allows you to globally change the mode of
Fibre Channel ports whose default mode is Auto, while avoiding traffic disruption caused by the
formation of unwanted inter-switch links (ISLs). The new system default switchport mode F command
sets the administrative mode of ports to mode F, while switch operation remains graceful. No ports are
flapped.
This command changes the configuration to administrative mode F of the following ports:
•
•
This command does not affect the configuration of the following ports:
•
•
To ensure that ports that are part of ISLs do not get changed to port mode F, configure the ports in port
Note
mode E, rather than in Auto mode.
If you downgrade from Cisco MDS SAN-OS Release 3.1(3) to any earlier SAN-OS release after you
execute the system default switchport mode F command, the ports retain the configuration that resulted
from the execution of the command. In other words, the ports do not revert back to the mode they were
in prior to executing the command. In addition, the system default switchport mode F command is not
available in SAN-OS releases lower than Cisco SAN-OS Release 3.1(3).
For additional information, refer to the
MDS 9000 Family Command Reference.
Changes in SAN Device Virtualization
Cisco SAN-OS Release 3.1(3) supports the following features of SAN Device Virtualization:
•
•
For additional information, refer to the
Cisco MDS 9000 Family Release Notes for Cisco MDS SAN-OS Release 3.1(3)
22
All ports that are down and that are not out-of-service.
All F ports that are up, whose operational mode is F, and whose administrative mode is not F.
All user-configured ports, even if they are down.
All non-F ports that are up; however, if non-F ports are down, this command changes the
administrative mode of those ports.
Virtual initiators
LUN zoning
Guide. For descriptions of new commands supported by the
Cisco MDS 9000 Family Command Reference.
Cisco MDS 9000 Family CLI Configuration Guide
Cisco MDS 9000 Family CLI Configuration Guide.
and the Cisco
OL-12208-05